Coccidium

(kok-sid'I-um) [dim. of G. kokkos, berry.] A genus of protozoans, order Coccid i idea, many species of which are parasitic in vertebrates. C. bigem'inum, a species found in the feces of dogs, cats, and po ibly man. C. cunic'uli, a parasite in the intestine and liver of rabbits. C. hom'in is, a species, po ibly identical with C. cuniculi, found in the human intestine and liver. C. ovifor'me, a species found in the intestine and liver of rabbits, mice, and man, sometimes causing cystic dilatation of the bile-ducts. C" per'forans, C. hominis. C. syphil'idis, an organism believed by McDonagh to be the pathogenic agent of syphilis, one stage is its life cycle being the Spirochceta pallid a.